Window sash adjusting and holding device



Jan. 16, 1951 c, J, 005 2,538,329

WINDOW SASH ADJUSTING AND HOLDING DEVICE Filed May 31, 1949 PatentedJan. 16, 1951 ENT OFFlCZE WINDOW SASH ADJUSTING AND HOLDING DEVICECharles J. Boos, Muskegon, Mich.

Application May 31, 1949, Serial No. 96,213

1 Claim. 1

This invention relates to a window sash operating and holding mechanism,the primary object of the invention being to provide an operating oradjusting mechanism designed for use on heavy window sashes, which canbe controlled and operated with the minimum amount of exertion on thepart of the operator.

An important object of the invention is to provide an adjusting andholding mechanism for window sashes, wherein the adjusting or operatingmechanism will act as a holding means after the desired adjustment hasbeen made.

Another important object of the invention is to provide means forretarding and regulating the downward movement of the sashes to preventbreakage and damage to the sashes, due to an overbalanced sash.

Another object of the invention is to provide a sliding window sashoperator, in which the pressure applied for moving the sashes of thewindow to their adjusted positions, will be equalized at both sides ofthe window sashes, to eliminate binding of the window sashes withintheir frames, which binding action usually renders the operation of thesash diificult.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claims, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawing:

Figure 1 is a front elevational view illustrating sliding window sashesequipped with an adjusting mechanism constructed in accordance with theinvention.

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1.

plates l I that are secured to the opposite surfaces of the side .rails,the rack bars 8 and plates ll providing the sides of the verticalchannels in which the pinions l2 operate. These pinions l2 are securedto the shaft I3, and have their ends mounted in the bearing plates I4and I5. Se

cured to the shafts l3 are pinions l6 that are engaged by the worm gearsH, which in turn are formed on the shafts I8 that extend through theside members of the window frame in which the sashes operate, the shaftsIt being provided with handles 19 at their forward ends, whereby theshafts I 8 may be rotated. In operating these shafts l8, it iscontemplated to operate the handles l9 at opposite sides of the sashsimultaneously, thereby preventing binding of the sashes within theirchannels, due to the operating pressure being applied at only one sideof the sash.

In the form of the invention as illustrated by Fig. of the drawings, thesashes 20 and 2| are provided with channel bars 22 fitted over the sideedges thereof, the channel bars being provided with the racks 23, thatare engaged by the pinions 24 secured to the shafts 25 that extendhorizontally through the window frame at the center of the window, theshafts 25 being provided with gear 26 which are engaged by the wormgears 21 secured to the horizontal operating shafts 28 that extendthrough the window frame. Handles 29 are secured to the forwardlyextended ends 30 of the shafts 28, so that rotary movement of the shafts28 at opposite sides of the window, will operate the upper and lowerwindow sashes simultaneously. It might be fur- Fig. 3 is a sectionalview taken on line 3-3- of Fig. 2.

Fig. 4 is an elevational view illustrating a modified form of theinvention, wherein a single operating shaft operates the inner and outersashes of a window simultaneously.

Fig. 5 is a sectional view taken on line 5-5 of Fig. 4.

Fig. 6 is a sectional view taken on line 66 of Fig. 5.

Referring to the drawings in detail, the reference character 5 indicatesa window frame which is provided with the usual sash channels, in whichthe lower sash 6 and upper sash I operate.

The sashes are provided with rack bars 8 that extend vertically, therack bars being secured to the side rails 9 of the sashes, by means ofthe securing pins Ill, which pins also pass through the ther stated thatthe threads of theworm gears 2'! on each shaft 28, are disposed inopposite directions so that the shafts 25 are rotated in oppositedirections to move one sash upwardly, while the other sash movesdownwardly, the movements of the sashes being controlled by thedirection of rotation of the handles 29.

From the foregoing it will be seen that due to the construction shownand described, I have provided a window sash operating mechanismspecially designed for use with heavy windows.

Having thus described the invention, what is claimed is: e

The combination with sliding upper and lower sashes operating in windowframes, of a sash operating mechanism comprising channel bars securedover the side edges of the sashes, teeth formed longitudinally andexternally of the channel bars at one of their respective side portions,parallel shafts extending transversely of the sashes, pinions secured tosaid shafts, meshing with the teeth of the rack bars, gears mounted onthe shafts spaced from the pinions, horizontally operating shaftssupported within the window frame at opposite sides thereof, disposed atright angles to the parallel shafts, worm gears having REFERENCES CITEDThe following references are of record in the 10 file of this patent:

Number 4 UNITED STATES PATENTS Name Date Bane Mar. 26, 1895 Williams eta1: -2 June 14, 1898 Young June'22, 1898 Johnson June 22, 1909 BujackMay 20, 1924

